package com.grace.interceptor;

import com.grace.entity.User;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class AdminInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute("user");
        if (user != null) {
            //放行
            return true;
        }
        //强制跳转到登陆页面...
        response.sendRedirect(request.getContextPath() + "/");

        return false;
    }
}
